کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7059923 | 1458111 | 2011 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effects of geometric design on thermal performance of star-groove micro-heat pipes
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
This work is aimed to study the effects of geometric design on the thermal performance of star-groove micro-heat pipes. A mathematical one-dimensional, steady-state model is developed from the first principles where the continuity, momentum, and energy equations of the liquid and vapor phases, together with the Young-Laplace equation, are solved numerically to yield the heat and fluid flow characteristics of the micro-heat pipe. The heat transport capacity and the corresponding optimal charge level of the working fluid are evaluated for different geometric designs and operating conditions. The unique geometrical design of the star-groove micro-heat pipes provides a better insight into the effects of various geometrical parameters, such as the cross-sectional shape, the acuteness of the corner apex angle, the number of corners, cross-sectional area and total length. Comparisons of the performance between the star-groove and regular polygonal micro-heat pipes are performed and the factors contributing to the enhancement of heat transport due to the variations of geometrical parameters are identified and discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 54, Issues 5â6, February 2011, Pages 1198-1209
Journal: International Journal of Heat and Mass Transfer - Volume 54, Issues 5â6, February 2011, Pages 1198-1209
نویسندگان
Yew Mun Hung, Q'bert Seng,